A(n) sentinel is a special value that marks the end of a sequence of items.

Sentinel value

Explanation:

It is the sentinel value in computer programming which is also being termed as the flag value, rogue value, dummy data signal value or the trip value. It has its meaning in the context of the algo, and that clarifies that it is the end of the block or code basically inside a loop or in any kind of recursive algo.

answer: internal fragmentation is the difference between the (fixed) size of a memory hole and the data within in that memory. for example, if a 1,024 byte block of memory holds 800 bytes of data, then the 224 bytes difference is considered lost to internal fragmentation.

external fragmentation occurs when the sum of memory fragments is large enough to satisfy a request, but the holes are non-contiguous and the request cannot be satisfied. this can occur when memory is dynamically allocated and freed.

explanation:

adbusters is an oppressive not-for-profit organization, founded in 1989  determined to end capitalism. the goal is to  spread their message through a self published magazine (which contains no advertisements). the likely reason why adbusters publishes a magazine with spoof advertisements is that  adbusters wants to encourage consumers to think critically about ads.